91048035129 has 16 divisors (see below), whose sum is σ = 126715804800. Its totient is φ = 58041156096.

The previous prime is 91048035101. The next prime is 91048035163. The reversal of 91048035129 is 92153084019.

It is a de Polignac number, because none of the positive numbers 2^k-91048035129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91048035179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10467 + ... + 426855.

It is an arithmetic number, because the mean of its divisors is an integer number (7919737800).

Almost surely, 2^91048035129 is an apocalyptic number.

It is an amenable number.

91048035129 is a deficient number, since it is larger than the sum of its proper divisors (35667769671).

91048035129 is a wasteful number, since it uses less digits than its factorization.

91048035129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419584.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 91048035129 in words is "ninety-one billion, forty-eight million, thirty-five thousand, one hundred twenty-nine".